diff options
Diffstat (limited to 'distrib/sdl-1.2.12/src/timer/macos/SDL_systimer.c')
| -rw-r--r-- | distrib/sdl-1.2.12/src/timer/macos/SDL_systimer.c | 186 |
1 files changed, 0 insertions, 186 deletions
diff --git a/distrib/sdl-1.2.12/src/timer/macos/SDL_systimer.c b/distrib/sdl-1.2.12/src/timer/macos/SDL_systimer.c deleted file mode 100644 index 33fb664..0000000 --- a/distrib/sdl-1.2.12/src/timer/macos/SDL_systimer.c +++ /dev/null @@ -1,186 +0,0 @@ -/* - SDL - Simple DirectMedia Layer - Copyright (C) 1997-2006 Sam Lantinga - - This library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - This library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with this library; if not, write to the Free Software - Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA - - Sam Lantinga - slouken@libsdl.org -*/ -#include "SDL_config.h" - -#ifdef SDL_TIMER_MACOS - -#include <Types.h> -#include <Timer.h> -#include <OSUtils.h> -#include <Gestalt.h> -#include <Processes.h> - -#include <LowMem.h> - -#include "SDL_timer.h" -#include "../SDL_timer_c.h" - -#include "FastTimes.h" - -#if TARGET_API_MAC_CARBON -#define NewTimerProc NewTimerUPP -#endif - -#define MS_PER_TICK (1000.0/60.0) /* MacOS tick = 1/60 second */ - - -#define kTwoPower32 (4294967296.0) /* 2^32 */ - -static double start_tick; -static int is_fast_inited = 0; - -void SDL_StartTicks(void) -{ - if ( ! is_fast_inited ) // important to check or FastTime may hang machine! - SDL_SYS_TimerInit(); - - start_tick = FastMicroseconds(); -} - -Uint32 SDL_GetTicks(void) -{ - - if ( ! is_fast_inited ) - SDL_SYS_TimerInit(); - - return FastMilliseconds(); -} - -void SDL_Delay(Uint32 ms) -{ - Uint32 stop, now; - - stop = SDL_GetTicks() + ms; - do { - #if TARGET_API_MAC_CARBON - MPYield(); - #else - SystemTask(); - #endif - - now = SDL_GetTicks(); - - } while ( stop > now ); -} - -/* -void SDL_StartTicks(void) -{ - // FIXME: Should we implement a wrapping algorithm, like Win32? -} - -Uint32 SDL_GetTicks(void) -{ - UnsignedWide ms; - - Microseconds (&ms); - - return ( ms.lo / 1000 ); -} - -void SDL_Delay(Uint32 ms) -{ - - UnsignedWide microsecs; - UInt32 stop; - - Microseconds (µsecs); - - stop = microsecs.lo + (ms * 1000); - - while ( stop > microsecs.lo ) { - - SystemTask (); - - Microseconds (µsecs); - } - -}*/ - -/* Data to handle a single periodic alarm */ -typedef struct _ExtendedTimerRec -{ - TMTask tmTask; - ProcessSerialNumber taskPSN; -} ExtendedTimerRec, *ExtendedTimerPtr; - -static ExtendedTimerRec gExtendedTimerRec; - - -int SDL_SYS_TimerInit(void) -{ - FastInitialize (); - is_fast_inited = 1; - - return(0); -} - -void SDL_SYS_TimerQuit(void) -{ - /* We don't need a cleanup? */ - return; -} - -/* Our Stub routine to set up and then call the real routine. */ -pascal void TimerCallbackProc(TMTaskPtr tmTaskPtr) -{ - Uint32 ms; - - WakeUpProcess(&((ExtendedTimerPtr) tmTaskPtr)->taskPSN); - - ms = SDL_alarm_callback(SDL_alarm_interval); - if ( ms ) { - SDL_alarm_interval = ROUND_RESOLUTION(ms); - PrimeTime((QElemPtr)&gExtendedTimerRec.tmTask, - SDL_alarm_interval); - } else { - SDL_alarm_interval = 0; - } -} - -int SDL_SYS_StartTimer(void) -{ - /* - * Configure the global structure that stores the timing information. - */ - gExtendedTimerRec.tmTask.qLink = NULL; - gExtendedTimerRec.tmTask.qType = 0; - gExtendedTimerRec.tmTask.tmAddr = NewTimerProc(TimerCallbackProc); - gExtendedTimerRec.tmTask.tmCount = 0; - gExtendedTimerRec.tmTask.tmWakeUp = 0; - gExtendedTimerRec.tmTask.tmReserved = 0; - GetCurrentProcess(&gExtendedTimerRec.taskPSN); - - /* Install the task record */ - InsXTime((QElemPtr)&gExtendedTimerRec.tmTask); - - /* Go! */ - PrimeTime((QElemPtr)&gExtendedTimerRec.tmTask, SDL_alarm_interval); - return(0); -} - -void SDL_SYS_StopTimer(void) -{ - RmvTime((QElemPtr)&gExtendedTimerRec.tmTask); -} - -#endif /* SDL_TIMER_MACOS */ |